Assume an elastic collision (ignoring friction
and rotational motion).
A queue ball initially moving at 3.7 m/s
strikes a stationary eight ball of the same size
and mass. After the collision, the queue ball's
final speed is 2.1 m/s at an angle of theta with
respect to its original line of motion.
Find the eight ball's speed after the colli-
sion. Answer in units of m=s.
possibly energy equations
The Attempt at a Solution
This problem would've been a lot easier if the problem provided theta's value. Without theta i only managed to get to this:
where Vx is the x component of the 8 ball after collision
where Vy is the y component of the 8 ball after collision
should i find theta first? or can I find one of the component's value first and then find theta?
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